More Gc statistics and logging

Added a few metrics to Gc performance measurements:
Mean GC throughput, total time spent in Gc, total time spent in allocation code, mean time per allocation.

Slightly optimized object allocation.

Change-Id: Ie68153a7100affafc4a01dab34b341077e754867
7 files changed
tree: 91db1d5a368c8b9bc26a432064a272ce2a788051
  1. .gitignore
  3. build/
  4. jdwpspy/
  5. src/
  6. test/
  7. tools/